Study on Ag doping in congruent lithium niobate crystal

Ag doped congruent lithium niobate crystal has been demonstrated as a promising photorefractive material for holographic recording applications. In this paper, the effects of Ag doping on the lattice structure and the optical properties were investigated by XRD, Raman spectroscopy and optical absorp...

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Bibliographic Details
Published in:Journal of crystal growth 2010-10, Vol.312 (20), p.3020-3024
Main Authors: Li, Minghua, Liang, Xinan, Xu, Xuewu, Solanki, Sanjeev, Chong Chong, Tow
Format: Article
Language:English
Subjects:
A1. Crystal structure
A1. Doping
B1. Niobate
B2. Photorefractive materials
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Crystal growth
Crystals
Doping
Exact sciences and technology
Lattices
Lithium niobates
Optical properties
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of bulk materials and thin films
Physics
Recording
Silver
Structure of solids and liquids
crystallography
Structure of specific crystalline solids
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Summary:Ag doped congruent lithium niobate crystal has been demonstrated as a promising photorefractive material for holographic recording applications. In this paper, the effects of Ag doping on the lattice structure and the optical properties were investigated by XRD, Raman spectroscopy and optical absorption characterization. The Ag ion was proposed to occupy Li-sites and results in lattice deformation. The band gap became narrower and an absorption band at near 500 nm was created with Ag doping. High temperature annealing and UV irradiation were performed to further understand the Ag doping effects.
ISSN:0022-0248
1873-5002
DOI:10.1016/j.jcrysgro.2010.07.003